Emerson 1F97-1277 User Manual

Big Blue Touchscreen Thermostat with

CAUTION

Automatic Heat/Cool Changeover Option

Installation and Operating Instructions for Model:

Save these instructions for future use!

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

Model Programming Choices

1F97-1277

Non-Programmable 5+1+1 Day 7 Day

APPLICATIONS

THERMOSTAT APPLICATION GUIDE

Description

Heat Pump (No Aux. or Emergency Heat) Yes Heat Pump (with Aux. or Emergency Heat) Yes Systems with up to 3 Stages Heat, 2 Stages Cool No Heat Only Systems Yes Millivolt Heat Only Systems – Floor or Wall Furnaces Yes Cool Only Systems Ye s Gas or Oil Heat Yes Electric Furnace Yes Hydronic (Hot Water) Zone Heat – 2 Wires Ye s Hydronic (Hot Water) Zone Heat – 3 Wires Ye s Wired Remote Temperature Sensor (Indoor/Outdoor) Yes

Dual Fuel Feature (Heat Pump Mode) Yes

1F97-1277 Touchscreen Thermostat

SPECIFICATIONS

Electrical Rating:

Battery Power.......................... mV to 30 VAC, NEC Class II, 50/60 Hz or DC

Input-Hardwire ......................... 20 to 30 VAC

Terminal Load ............................. 1.5A per terminal, 2.5A maximum all terminals combined

Setpoint Range ............................ 45 to 99°F (7 to 37°C)

Differential (Single Stage) .................... Heat 0.6°F; Cool 1.2°F

Differential (Multi-Stage) ..................... Heat 0.6°F; Cool 1.2°F

Differential (Heat Pump) ..................... Heat 1.2°F; Cool 1.5°F

Operating Ambient.......................... 32°F to +105°F (0 to +41°C)

Operating Humidity ......................... 90% non-condensing max.

Shipping Temperature Range ................. -4 to +150°F (-20 to +65°C)

Dimensions Thermostat...................... 4-9/16"H x 5-13/16"W x 1-3/16"D

To prevent electrical shock and/or equipment damage, disconnect electric power to system at main fuse or circuit breaker box until installation is complete.

Index Page

Installation 2 Wiring Connections 2 Thermostat Quick Reference 4 Installer Conguration Menu 5 Operating Your Thermostat 8 Programming 9 Troubleshooting 12

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www.emersonclimate.com

ATTENTION: MERCURY NOTICE

This product does not contain mercury. However, this product may replace a product that contains mercury.

Mercury and products containing mercury must not be discarded in household trash. Do not touch any spilled mercury. Wearing non-absorbent gloves, clean up any spilled mercury and place in a sealed container. For proper disposal of a product containing mercury or a sealed container of spilled mercury, place it in a suitable shipping container. Refer to www.thermostat-recycle.org for location to send the product containing mercury.

PART NO. 37-7388A

1241

2 "AA" Batteries

INSTALLATION

Mounting

Hole

Mounting

Hole

Place Level across Mounting Tabs (for appearance only)

Place Level

across

Mounting Tabs

(for appearance only)

W/E

WARNING

Thermostat installation and all components of the control system shall conform to Class II circuits per the NEC code.

Remove Old Thermostat

A standard heat/cool thermostat consists of three basic parts:

1. The cover, which may be either a snap-on or hinge type.

2. The base, which is removed by loosening all captive screws.

3. The switching subbase, which is removed by unscrewing

the mounting screws that hold it on the wall or adapter plate. Before removing wires from old thermostat,

label each wire with the terminal designation from which it was attached. Disconnect the wires from the old

thermostat one at a time. Do not let wires fall back into the wall.

Battery Location

2 "AA" alkaline batteries are included in the thermostat at the factory with a battery tag to prevent power drainage. Remove the battery tag to engage the batteries. To replace batteries, set system to OFF, remove thermostat from wall and install the batteries in the rear along the top of the thermostat (see Figure 1).

Figure 1 – Thermostat Base Multi-Stage 1F97-1277

Installing New Thermostat

1. Pull the thermostat body off the thermostat base. Forcing

or prying on the thermostat will cause damage to the unit.

2. Place base over hole in wall and mark mounting hole

locations on wall using base as a template.

3. Move base out of the way. Drill mounting holes. If you

are using existing mounting holes and the holes drilled are too large and do not allow you to tighten base snugly,

use plastic screw anchors to secure the base.

4. Fasten base snugly to wall using mounting holes shown

in Figure 1 and two mounting screws. Leveling is for appearance only and will not affect thermostat operation.

5. Connect wires to terminal block on base using appropriate wiring schematic (see diagrams on next page).

6. Push excess wire into wall and plug hole with a re resistant material (such as berglass insulation) to prevent

drafts from affecting thermostat operation.

7. Carefully line the thermostat up with the base and snap

into place.

WIRING CONNECTIONS

Refer to equipment manufacturers' instructions for specic

system wiring information. After wiring, see CONFIGURA-

TION section for proper thermostat conguration.

Rear view of thermostat

For wiring diagrams, see next page. Wiring diagrams shown are for typical systems and describe the thermostat terminal functions.

TERMINAL DESIGNATION DESCRIPTIONS

Terminal Designation Description

B ...................Changeover valve for heat pump energized constantly in heating

O ...................Changeover valve for heat pump energized constantly in cooling

Y ...................Compressor Relay

G ...................Fan Relay

RC...................Power for Cooling

RH...................Power for Heating

C ...................Common wire from secondary side of cooling

L ...................For Call for Service indicator for systems with diagnostic connection

6 ...................Powered closed connection for 3-wire zone valve

W ...................Heat Relay

-....................Common (DC) for wired remote temperature sensor

S ...................Frequency signal from remote temperature sensor

+ ...................Power (DC) to remote temperature sensor

WIRING CONNECTIONS

To Remote Te mperature Sensor

HEATING

To Remote Temperature Sensor

Single Stage Connections

Refer to equipment manufacturers' instructions for specic system

wiring information. This thermostat is designed to operate a single-transformer or twotransformer system.

You can congure the thermostat for use with the following systems:

Single Stage System with Single Transformer

To Remote Te mperature Sensor

Jumper

120VAC

TRANSFORMER

System

Single Stage

(SS)

CLASS II

Energized in Heat or Off Mode

System

Single Stage

(SS)

NEUTRAL

24VAC

HOT

Energized in Cool Mode

Energized in Heat, Off Mode

Energized on call for Cool (Compressor)

Energized in Cool Mode

Remove Jumper Wire between RH & RC

Energized on call for Cool (Compressor)

Blower/ Circulator Fan Energized on call for Cool & for Heat (if ELE is selected)

DC supply

24 Volt

voltage

Com-

24 Volt

24 Volt (Hot) Cool

(Hot) Heat

mon (optional)

to remote Temperature Sensor

*Common connection required for fault or malfunction indication and remote sensor.

Single Stage with Two Transformers

Jumper

24 Volt (Hot) Cool

24 Volt Com-

24 Volt

mon

(Hot)

(option-

Heat

al)

*Common connection required for fault or malfunction indication and remote sensor.

Blower/ Circulator Fan Energized on call for Heat or Cool (if ELE is selected)

SINGLE STAGE gas, oil or electric.

HEAT PUMP TYPE 1 (HP 1). Single stage compressor system; gas

or electric backup.

After wiring, see INSTALLER CONFIGURATION section for proper

thermostat conguration.

{

Remote Temperature Sensor signal

DC Return to Remote Temperature Sensor

Energized on call for Heat

Third wire for 3-wire zone valve

Diagnostic Indicator (See

Note

)

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

{

NOTE: If continuous backlight or hardwired power input are desired but do not function

DC supply voltage to remote Temperature Sensor

Remote Temperature Sensor signal

DC Return to Remote Temperature Sensor

Energized on call for Heat

Third wire for 3-wire zone valve

Diagnostic Indicator (See Note

in both HEAT and COOL modes, cut the

heating transformer 24V wires and tape off. Connect the neutral circuit disconnected from the heating transformer to the neutral circuit of the cooling transformer. Disconnect the wire to the RH terminal and install a jumper between RH and RC. Depending on the system requirements, replace the

)

cooling transformer with a 75VA class II transformer if needed.

NEUTRAL

24VAC

HOT

CLASS II

TRANSFORMER

120VAC

COOLING

Heat Pump Systems

{

Jumper

System

Heat Pump 1 (HP1)

Energized in Heat/ Emergency Mode

Energized in Cool & Off Mode

1st Stage Heat & Cool (Compressor) **

Blower/ Circulator Fan

24 VAC

Energiz-

(Hot)

ed on

Cool

call for Heat or Cool

24 VAC (Hot) Heat

24 VAC Common (optional)

NOTE ➀: Connection for Call for Service diagnostic indicator compatible with mechanical or electronic condenser control with Comfort AlertTM.

DC supply voltage to remote Temperature Sensor

Remote Temperature Sensor signal

DC Return to Remote Temperature Sensor

Auxiliary & Emergency Heat 1st Stage

Power Closed Connection for 3-wire zone valve

Diagnostic Indicator (See Note )

Comfort Alert II module or similar malfunction module

NEUTRAL

24VAC

HOT

TRANSFORMER

*24 VAC common connection optional for system operation.

Required for fault or malfunction indi-

cation, remote temperature sensor, or

for continuous backlight operation.

**Dual fuel de-energizes

compressor when auxiliary heat is

energized.

120VAC

CLASS II

Time of Day

Day of Week

Room Temperature

System Switch

Fan Switch

Indicates when thermostat is calling for Heat or Cool

Battery Level Indicator Indicating the current power level of the 2 “AA” batteries. Full power remaining. Half power remaining.

Change The batteries should be replaced at this time.

Menu key for entering

different modes such as Configuration, Set Time, Set Schedule and Cleaning

Enters user-friendly program into the schedule

Temperature UP/Down used for modifying set point as well as to navigating the menus

Set Temperature

THERMOSTAT QUICK REFERENCE

Home Screen Description

Figure 2 – Home Screen Display

Programming and Conguration Items

Displays and "Keypad Lockout" when in keypad

lockout mode. Displays Lockout" when limited range is activated and locked. Displays only "Temperature Limit" when limited range is activated.

Indicates period of day being programmed.

RUN SCHEDULE (run program) button.

SET TIME button or HOLD temperature button.

Displays "Change Filter" when the system has run

for the programmed lter time period as a reminder to change or clean your lter.

COPY button or INSTALLER CONFIG button.

CLEAN DISPLAY button allows 30 seconds to wipe off

the display or ADVANCE DAY button for programming.

Used in programming to set time and in conguration

menu to change selections.

"Hold Until" indicates the time when a temporary hold

period will end.

"Hours" and "Days" displays during steps in installer

conguration.

The words "Hold At" are displayed when the thermo-

stat is in the HOLD mode. "Temporary Hold At" is displayed when the thermostat is in a temporary HOLD mode.

"Call For Service" indicates a fault in the heating/cool-

ing system. It does not indicate a fault in the thermostat.

and "Temperature Limit" and "Keypad

Figure 3 – Programming & Conguration Items

"System On" indicates when heating or cooling stage

is energized.

"Copy" indicates the copy program feature is being

used during programming.

A steady "Cool Savings" display indicates the feature

is enabled in the installer menu. A ashing "Cool Savings" display indicates the feature is active.

"Remote" indicates that the indoor remote temperature

sensor, is being accessed. "Outdoor Remote" indicates the outdoor remote temperature sensor is being accessed.

INSTALLER/CONFIGURATION MENU

To enter the menu: Press the Menu touch key. Press and hold for 5 seconds the Installer Cong touch key. This displays menu item #1 in the table below. Press or

to change a menu item.

Installer Note: To default the programming, clock and Conguration Menu to the Factory Default Settings, press the

and SYSTEM keys simultaneously. The thermostat display will go blank for a few seconds, and then all segments will display momentarily. For heat pump systems, Conguration Menu item 1 must be set to match the heat pump system.

If rst item does not show SS1 or HP1, you have an earlier thermostat model and need Instruction Sheet 37-6814D.

Reference

Number

Program-

mable

1 1 1 SS1 HP1, SS1 Selects Single Stage or Heat Pump

2 2 2

3 3 3

4 4 NA

5 5 4

6 6 NA

7 7 5

8 8 6

9 9 7

10 10 8

11 11 9

12 12 10

13 13 11

14 14 12

15 15 13

16 16 14

17 17 15

18 18 16

19 19 17

20 20 18

21 21 19

22 22 20

23 23 21

24 24 22

25 25 23

26 26 24

Non-

Program-

mable

Press

Button

to advance to the next menu item or to return to a previous menu item. Press

CONFIGURATION MENU

Displayed

(Factory Default)

(ELE) GAS GAS setting: furnace controls blower

Days, (7) P 5+1+1 or 0 Programs per week. (0 = non-programmable)

PS (4) 2 Program periods per day

Cool-Off-

Heat-Auto

Cool-Off-Heat-

Emer-Auto

E (On) OFF Selects Energy Management Recovery, E (with programming option on)

Cr, Heat (FA) SL Selects Adjustable Anticipation, cycle rate, Heat

Cr, Cool (FA) SL Selects Adjustable Anticipation, cycle rate, Cool

Cr/AU, Emer (FA) SL Selects Adjustable Anticipation, cycle rate auxiliary, (This item is

CL (OFF) On Selects Compressor Lockout

dL (On) OFF Selects Continuous Display backlight & intensity

dL (LO) HI Selects Backlight Intensity

0 4, LO to 4, HI Selects Adjustable Ambient Temperature Display [range -4 (LO)

°F °C Selects °F/°C Display (temperature units in Fahrenheit or Celsius).

b (On) OFF Selects audible Beeper On/Off

dS (On) OFF Selects Daylight Saving Time calculation

AS, Heat (On) OFF Selects Automatic Schedule for comfort temperature Programming,

AS, Cool (On) OFF Selects Automatic Schedule for comfort temperature Programming,

CS, (OFF)

Cool Savings

HL, Heat (99) 62-98 TEMPERATURE LIMIT, HEAT (max. heat set point)

LL, Cool (45) 46-82 TEMPERATURE LIMIT, COOL (min. cool set point)

OFF,

Keypad Lockout

000 001-999 Selects Keypad Lockout Combination (active only if keypad Lockout

FS, Heat (On) OFF Fast second stage of heat (not available if SS1 is selected above)

Remote (OFF) On Remote temperature sensor, enable/disable

In, Remote Outdoor Remote Remote temperature sensor (Indoor/Outdoor)

LS (On) OFF Local temp. Sensor enable/disable (only when Indoor Remote is

dF (5) 5-50 Selects Dual Fuel Feature & set point (in Fahrenheit)

Cd (60) 0-99 Selects Compressor delay in seconds (only when dF is selected >5)

Change Filter

(OFF)

200 Hours 25-1975

Press

or to

select from listed

options Comments

(1 compressor)

ELE setting: thermostat controls blower

4 = Morning, Day, Evening, Night

Cool-Off-Heat,

Off-Heat, Cool-Off Cool-Off-Heat-Emer,

Off-Heat-Emer,

Cool-Off

1-2-3-4-5-6 Selects Cool Saving Feature & amount

L (total), P (partial), Temperature Limit

(limited temperature

range)

On Selects Change lter feature

(in increments

of 25 hours)

2 = Day, Night

System switch conguration in single stage

System switch conguration, heat pump mode

only to appear if HP1 is selected above)

to +4 (HI)]

heat mode

cool mode

Selects Keypad Lockout

is selected).

selected On).

(applicable only when HP1 is selected)

Change lter, duration hours

INSTALLER/CONFIGURATION MENU

1) This control can be congured for:

SS1 – Single Stage System HP1 – Heat Pump with one stage of compressor (2 heat/1 cool) (Dual Fuel see menu item 25)

2) GAS or Electric (ELE) fan operation. If the heating

system requires the thermostat to energize the fan, select ELE. Select GAS if the heating system energizes the fan on a call for heat. Note: Resetting the thermo-

stat switches the option to ELE.

3) Programs per week – This control can be congured for

7 independent day or 5+1+1 day programming or non-

programmable modes. Default is 7-day mode. The display indicates "7 Days" as default. Other options "5

Days" or "0 Days" can be selected by pressing touch

keys, mable mode, the step for EMR will be skipped, as this feature will not be available in this mode.

4) Program Steps per day – This control can be congured

for 4 or 2 program steps per day. Default is "4 PS" and can be toggled between 4 PS and 2 PS by pressing

the

5) System Switch Conguration (SS1/HP1) – This ther-

mostat is congured for Heat and Cool with Auto changeover default (Cool-Off-Heat-Auto). Can be congured as

Heat & Cool (Cool-Off-Heat), or Heat Only (Off-Heat), or Cool Only (Cool-Off).

When the control is in heat pump conguration (HP1), the

system switch conguration will have an additional mode

available namely, Emer for Emergency Mode.

6) Energy Management Recovery (EMR) – (this step is

skipped if congured as non-programmable).

When set to "On" causes the thermostat to start heating or cooling early to make the building temperature reach the program setpoint at the time you specify. Example: Let us say, the heating program is 65°F at night and 70° at 7 AM. If the building temperature is 65°F, the difference is 5°F. Allowing 5 minutes per °F rise, the thermostat setpoint will change to 70° at 6:35 AM. Cooling allows more time per °F, because it takes longer to reach temperature. 7, 8 & 9) Cycle Rate Selection – The factory default setting is fast cycle (FA Cr) in all modes (Heat, Cool, Emer). To slow cycling (SL, Cr), press touch keys between FA & SL. The cycle rates are as below different selections: Mode Fast rate Slow rate Heat 0.6°F 1.2°F Cool 1.2°F 1.7°F Emer 1.2°F 1.7°F

10) Select Compressor Lockout (CL) – Selecting CL On

will cause the thermostat to wait 5 minutes between

cooling cycles. This is intended to help protect the compressor from short cycling. Some of the newer compressors have already got a time delay built in and

do not require this feature to be activated in the thermo-

stat. Your compressor manufacturer can tell you if this lockout feature is already present in their system. When the thermostat compressor time delay is activated, it will

ash the set point for up to ve minutes.

11) Select Continuous Backlight – In low lighting condi-

tions, display backlight improves the display contrast. When C terminal is connected, selecting dL On will turn

or . If "0 Days" is selected for non-program-

or touch keys.

or toggle

the backlight on continuously. Selecting dL Off will turn the backlight on momentarily after any key is pressed.

When C terminal is not powered (battery only), dL On

enables the momentary backlight whenever a key is pressed.

12) Select Backlight Intensity – This thermostat has the ability to provide two selectable intensities of the back light: HI and LO. Using toggle the selection between HI and LO.

13) Select Temperature Display Adjustment 4 LO to 4 HI This allows you to adjust the room temperature display by an amount in the range of -4°F to +4°F in 1° steps by using the accurately calibrated at the factory, however you have the option to change the display temperature value to match your previous thermostat, if you so prefer.

14) Select °F or °C Readout – Select the desired temper ature unit by pressing

15) Select Audio Prompting (Beeper) On or Off – Factory default setting is on (b, On). If you wish to turn off the beeper select OFF.

16) Select Daylight Saving Time Calculation – This feature will allow the thermostat to calculate the DST automati-

cally and apply it to the Real Time Clock display. Default On. Use 17 & 18)Select Automatic Schedule – This feature allows programming a “Comfort Temperature” into all program periods with the Auto Schedule key. When Heat AS (for Heat mode) or Cool AS (for Cool mode) is selected On, the Auto Schedule feature is ready to be set. Off in-

dicates that the feature is not ready to be used or a

“Comfort Temperature is already set. See Auto Schedule

in Programming section.

19) Select Cool Savings™: With Cool Savings™ enabled, the thermostat will make small adjustments to the setpoint temperature during periods of high demand to reduce AC system running time and save energy. When the cooling system has been running for more than 20 minutes, humidity in the home will be lower and a higher temperature will feel comfortable. After 20 minutes of run time, the thermostat will start increasing the setpoint

temperature in steps of less than one degree as the system continues to run. These adjustments will eventu-

ally cause the system to satisfy the thermostat to turn the system off and reduce the energy consumption. When the Cool Savings™ feature is active and making ad-

justments, the display will ash “Cool Savings”. The

amount of the adjustments to the setpoint temperature

is dependent on the Cool Savings™ value that is set, 1

being the least adjustment and 6 being the most adjust-

ment. With this feature set to OFF, no change will occur

when the AC system is continuously running during the

periods of high demand. Periods of high demand will nor-

mally occur during the late afternoon and early evening

on the hottest days of the summer. As demand lessens

the adjustments to setpoint temperature are reversed

until setpoint temperature returns to normal and “Cool

Savings” no longer ashes.

or touch keys. Your thermostat was

or touch keys to select the feature, OFF.

or touch keys you can

or . Factory default is °F.

INSTALLER/CONFIGURATION MENU

20) Heat Temperature Limit Range – This feature adjusts the highest setpoint temperature for heat. The default setting is 99°F. It can be changed between 62°F and 98°F by pressing the limit" icon will be displayed to the left of your setpoint temperature when using this feature. The "temperature

limit" icon will ash if an attempt is made to adjust the

temperature beyond the range selected.

21) Cool Temperature Limit Range – This feature adjusts the lowest setpoint temperature for cool. The default setting is 45°F. It can be changed between 46°F and 82°F by pressing the limit" icon will be displayed to the left of your setpoint temperature when using this feature. The "temperature

limit" icon will ash if an attempt is made to adjust the

temperature beyond the range selected.

22) Keypad Lockout – This step allows you to select the type of lockout or limited range security required. If no lockout or limited range security is required, press advance the menu. Three security settings are available in this menu item. Use the Lockout selections are: "Keypad Lockout and L" = Total Lockout. Total Lockout locks all keys. "Keypad Lockout and P" = Partial Lockout. Partial Lock out allows only the set temperature limits. "Temperature Limit/Keypad Lockout" prevents

changing the temperature limits in the Conguration

Menu. Keypad Lockout Combination Number Selection Display will read "OFF" "Keypad Lockout".

Skip this step and continue through the conguration

menu items 23 thru 26 if you require an Air Filter Change

out indicator or Humidier Pad Change out indicator by

pressing the Return to this point when you are ready to start your selected lock-out and continue by: Pressing Press Pressing combination number. Note: "000" is not a valid combination choice. Record the number you select for future use. Press select will start in 10 seconds. The system button will remain active for 10 seconds to allow setting Heat, Off, Cool or Auto.

or keys to select the lockout desired.

button to advance.

or keys to select ON.

. Display will read "000".

or keys to select your keypad lockout

to exit the menu. The security feature you

or key. The "temperature

or keys to operate within your

23 Select Fast Second Stage ON or OFF – In the run mode, with the fast Heat feature enabled (FA Heat On), if the Heat setpoint temperature is manually raised by 3°F (2°C) or more above the actual temperature using second stage will energize immediately. With FA OFF,

second stage will not energize until the setpoint tempera-

ture is 1°F or more above actual temperature for more than ten minutes. The Fast Cool feature (FA Cool) pro-

vides the same controls when the setpoint temperature is

lowered.

24) Select Remote Temperature Sensor – This control

allows one wired remote temperature sensor (indoor,

F145-1328, or outdoor, F145-1378) be connected to it

and indicates the measured temperature in clock digits.

This menu enables you to select the remote sensor and

also congure it as indoor or outdoor temperature sensor.

Factory default is off. Select Remote On and Remote in

(for indoor) or Outdoor Remote. Local Temperature Sensor disable – This is applicable only when indoor remote temperature sensor is enabled. Factory default is On LS. You can make it Off LS if you desire by using indoor remote temperature reading will be used for control.

25) Select Dual Fuel Feature and Setpoint – This feature is applicable only in heat pump modes. An outside remote sensor must also be installed. When the outside tem perature falls below the selected setpoint temperature, dF, the thermostat will switch to gas heat and shut down the compressor. Use the desired setpoint temperature in the range of 5 to 50. Factory default is 5, which disables this feature. See Dual Fuel Temperature and Setpoint in Programming section. Select Compressor Delay – When dF is enabled, the shut down of the compressor(s) is delayed for a time period after the auxiliary stage is energized. This delay, Cd, is factory set at 60, but can be set in the range of 0 to 99.

26) Select Change Filter Run Time – The thermostat will display "Change Filter" after a set time of blower operation. This is a reminder to change or clean your air

lter. This time can be set from 25 to 1975 hours in 25

hour increments. A selection of OFF will cancel this feature. When "Change Filter" is displayed, you can clear it by pressing Clean Display. In a typical application, 200 hours of run time is approximately 30 days.

or touch keys. Then, only the

or keys to select the

the

OPERATING YOUR THERMOSTAT

IMPORTANT!

Choose the Fan Setting (Auto or On)

Fan Auto is the most commonly selected setting and runs the fan only when the heating or cooling system is on. Fan On selection runs the fan continuously for increased air circulation or to allow additional air cleaning.

Choose the System Setting (Cool, Off, Heat, Emer, Auto)

Press the SYSTEM button to select:

Heat: Thermostat controls only the heating system. Off: Heating and Cooling systems are off. Cool: Thermostat controls only the cooling system. Auto: Auto Changeover is used in areas where both heating

and cooling may be required on the same day. AUTO allows the thermostat to automatically select heating or cooling depending on the indoor temperature and the selected heat and cool temperatures. When using AUTO, be sure to set the Cooling temperatures more than 1° Fahrenheit higher than the heating temperature. Emer: Setting is available only when the thermostat is cong- ured in HP1 mode.

Manual Operation for Non-Programmable Thermostats

Press the SYSTEM button to select Heat or Cool and use the

or buttons to adjust the temperature to your desired setting. After selecting your desired settings you can also press the SYSTEM button to select AUTO to allow the thermostat to automatically change between Heat and Cool.

Manual Operation (Bypassing the Program) Programmable Thermostats

Press or and the HOLD button and adjust the temperature wherever you like. This will override the program. The HOLD feature bypasses the program and allows you to adjust the temperature manually, as needed. Whatever temperature you set in HOLD will be maintained 24 hours a day, until you manually change the temperature or press Run Schedule to cancel HOLD and resume the programmed schedule.

Program Override (Temporary Override)

Press or buttons to adjust the temperature. This will override the temperature setting for a (default) four hour override period. The override period can be shortened by pressing

or lengthened by pressing . Program Override period can range from 15 minutes to 7 days. Example: If you turn up the heat during the morning program, it will be automatically lowered later, when the temporary hold period ends. To cancel the temporary setting at any time and return to the program, press Run Schedule. If the SYSTEM button is pressed to select AUTO the thermostat will change to Heat or Cool, whichever ran last. If it switches to heat but you want cool, or it changes to cool but you want heat, press both change to the other mode.

or buttons simultaneously to

PROGRAMMING

Set Current Time and Day

1) Press Menu key to enter installer menu. Then press Set Time once to indicate hour & A or P designation in clock display.

2) Press and hold either the reach the correct hour and A or P designation.

3) Press Set Time again to display minutes only in clock display.

4) Press and hold either the reach the correct minutes.

5) Press Set Time once again to display year.

6) Press and hold either the reach the correct year.

7) Press Set Time once again to display month.

8) Press and hold either the reach the correct month.

9) Press Set Time once again to display date of the month along with day of the week at top row (which is automatic).

10) Press and hold either the reach the correct day of the month and day of the week is automatically calculated and displayed at the top row.

11) Press Run Schedule once; now the display will show the correct time and room temperature.

or touch key until you

or touch keys until you

or touch key until you

Automatic Daylight Saving Calculation

The Real Time Clock will adjust automatically for daylight savings time, in the following manner: Increment one hour at 2 AM on the second Sunday of March and decrement one hour at 2 AM on the rst Sunday of November. (New DST effective 2007). The daylight saving feature can be enabled or disabled in

installer conguration mode. Default is dS ON (enabled). After entering installer conguration mode, momentarily

press actual temperature digits) and on (default – in clock digits).

OFF.

or touch key until the display indicates dS (in

and keys will toggle display and operation from on to

Programming Tip: Copy Button

You may copy any daily program to another day or group of days by pressing the Copy button. In 7 day programming mode when the Copy button is pressed, the other 6 days

of the week will ash. To copy the current program into the

remaining six days, simply press the Copy button again. To copy the current program to another day of the week, press Advance Day to select the day and press Copy to paste the program. In 5+1+1 day programming mode the copy function is similar. The weekday (Mon-Fri) program can be copied to

Sat and Sun (both ashing) or use Advance Day to choose

Sat or Sun and press the Copy button to paste the program.

PROGRAMMING

Fill in the blank schedule on the next page then:

Enter the Heating Program

1) Press the Menu button and then press Set Schedule. Press SYSTEM button to select either "Heat" or "Cool"

in the system switch area indicating the active mode being programmed. You can switch to the other mode by pressing the system switch at any time.

2) The top of the display will show the day(s) being programmed. The time and set at temperature are also

displayed. "Morning" will also be displayed to indicate the period.

3) Press

selected temperature for the 1st heating period (Morning).

4) Press

The time will change in 15 minute increments.

5) Press FAN to select Auto or Prog.

6) After you have set the time and the temperature for the period to begin, press Set Schedule to advance to the next program period.

7) Repeat steps 2 through 6 until all of the program times and temperatures are set for all program periods on that day.

8) Press "Advance Day" to change to the next day and repeat steps 2 through 8.

9) When programming is complete and all of the times and temperatures match your desired heating schedule, press

Run Schedule. The thermostat will now run your program.

or key to change the temperature to your

or key to adjust the start time for period.

Enter the Cooling Program

1) Press the SYSTEM button until the Cool icon appears.

2) Follow Enter Heating Program instructions for entering

cooling times and temperatures.

Automatic Schedule

This feature provides a method to program every day with

the most popular time and temperature prole using one key

press. For this feature to be available, the Auto schedule options (AS Cool or AS Heat) should be set on in the installer

conguration.

Select the desired “Comfort Temperature” in the setpoint. When the Auto Schedule touch key is pressed, it will start

ashing indicating that it is now ready to insert the displayed

temperature setpoint as the “Comfort Temperature” for the selected system mode currently in (Heat/Cool). A second press of the Auto Schedule touch key will complete the process. A 6 the night step. Once it is done, the touch key display Auto

Schedule will disappear disabling any further operation of Auto Schedule touch key. If desired it can be enabled again

in the installer conguration menu.

F setback temperature will also be inserted for

Entering Fan Program

In the Set Schedule mode, the FAN key is used to select the fan operation during a program period. The default state of the Fan key is FAN Auto (fan runs during a call for cool but not on a call for heat). It can be changed to FAN Prog (fan runs during a program period). Each press of the FAN key will change the mode of the fan between Auto and Prog.

In the Run mode, when a program period that has FAN Prog begins, the fan will turn on and stay on during the complete period. The display will show FAN On Prog. Pressing the FAN key will change FAN On Prog to On (fan running continuously) or Auto. To return to FAN On Prog, press Run Schedule.

PROGRAMMING

Energy Saving Factory Pre-Program

The 1F97-1277 thermostats are programmed with the energy saving settings shown in the table below for all days of the week. If this program suits your needs, simply set the thermostat clock and press the RUN button. The table below shows the factory set heating and cooling schedule for all days of the week.

*Wake Up (Morning)

Heating

Program

Cooling

Program

* You can eliminate these two program periods in the conguration menu (reference #4) if the building is occupied all day.

Day will change to 6:00 am and can be programmed as required.

6:00 AM 70°F 8:00 AM 62°F 5:00 PM 70°F 10:00 PM 62°F

6:00 AM 78°F 8:00 AM 85°F 5:00 PM 78°F 10:00 PM 82°F

Leave For Work

(Day)

*Return Home

(Evening)

Go To Bed

(Night)

Planning Your Program – Important

The Heating and Cooling Program schedules below allow you to pencil in your own program times and temperatures.

The 1F97-1277 comes congured for 7 day programming and can also be congured for 5+1+1 programming (see conguration section).

Factory settings are listed on Monday, Saturday and Sunday. If you are re-programming a 5+1+1 day schedule, pencil in your own times and temperatures directly below the factory times and temperatures.

If you are re-programming a 7 day ll in all lines with the times and temperatures you want.

Keep the following guidelines in mind when planning your program.

• In Heating, lower temperatures will save energy.

• In Cooling, higher temperatures will save energy.

• If you plan on using Auto Changeover, do not program the heating higher than the cooling.

Worksheet for Re-Programming 5+1+1 and 7 Day Program

Heating

Program

MON

Wake Up Leave For Work Return Home Go To Bed

(Morning) Fan (Day) Fan (Evening) Fan (Night) Fan

6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto

TUE

WED

THU

FRI

SAT

SUN

Cooling

Program

MON

TUE

WED

THU

FRI

SAT

SUN

6:00 AM 70°F Auto 8:00 AM 62°F Auto 5:00 PM 70°F Auto 10:00 PM 62°F Auto

Wake Up Leave For Work Return Home Go To Bed

(Morning) Fan (Day) Fan (Evening) Fan (Night) Fan

6:00 AM 78°F Auto 8:00 AM 85°F Auto 5:00 PM 78°F Auto 10:00 PM 82°F Auto

PROGRAMMING

Wired Remote Temperature Sensing

One remote temperature sensor can be installed indoor or outdoor and connected to the thermostat by a maximum cable length of 100 meters (300 ft). Three terminals, +, S & are provided on the terminal block to connect to the WhiteRodgers standard wired remote sensor. This sensor will be read by the thermostat only when 24VAC is present. When used as indoor sensor, the readings can be weighted

with the local sensor for specic program periods. User can enable or disable the remote sensor in the installer congura-

tion mode and also the outdoor temperature can be selected to show on the display.

Once in the installer conguration mode, momentarily press

the

or touch key until display indicates Remote (at the top left of the LCD) and OFF (default – in clock digits). Pressing display from Remote OFF to Remote On. When Remote On is selected, press indicate Remote In (for indoor remote). The Remote In to Outdoor Remote. When any remote is selected the temperature will display in the clock digits for one second alternating with the current time for three seconds when in Run Schedule mode. Outdoor Remote will indicate at the top left of display for outdoor remote reading. Only Remote will show at top left for indoor remote reading.

(

F or oC will not indicate with remote temperature readings).

Sensing Range: Outdoor temperature range is -40 to 140 Indoor temperature range is 32

or touch key will toggle the operation and

key for the display to

or keys will toggle the operation and display from

F to 99 oF

Weight of Remote Reading:

When in view schedule mode the weight of the indoor remote sensor will be shown in the left actual temperature digits designated as A2 (default for average weight), H4 (high weight) or L1 (low weight). The period (Morning, Day, Evening, Night) will also be shown to the right of the weight value in the actual temperature digits. When in view schedule mode, press the same time to sequence the indoor remote temperature sensor weight from A2 to H4 to L1 and back to A2 for each of the program period times for each day. (The H4 weight is twice the weight of A2 and A2 is twice the weight of L1).

When Remote In is selected (with Remote selected to On), press

key for the display to indicate the status of the local sensor LS On (default for thermostat local sensor operational). The

and keys will toggle the function and display from LS (shown in actual temperature digits) and On (shown in clock digits) to LS OFF to designate the local sensor is disabled.

The local sensor may be disabled only if the indoor remote sensor is enabled and functional. If the indoor remote sensor is disabled or not functional, the local sensor will automatically enable and display in the run schedule mode. The actual temperature displayed in the run mode is the mathematical weighted sum of the two temperature sensors – local and indoor remote. (Outdoor remote sensor is not used for this computation). If the remote sensor is absent or not enabled then the actual temperature will be as measured by the local sensor.

and keys at the

TROUBLESHOOTING

Reset Operation

Note: When thermostat is reset, installer conguration menu settings and programming will reset to factory settings.

If a voltage spike or static discharge blanks out the display or causes erratic thermostat operation, you can reset the thermostat by removing the wires from terminals R and C (do not short them together) and removing batteries for 2 minutes. After resetting the thermostat, replace the wires and batteries. If the thermostat has been reset and still does not function correctly contact your heating/cooling service person or place of purchase.

Symptom Possible Cause Corrective Action

No Heat/No Cool/No Fan (common problems)

No Heat 1. Pilot light not lit.

No Cool 1. Cooling system requires service or

Heat, Cool or Fan Runs Constantly

Thermostat Setting & Thermostat Thermometer Disagree

Furnace (Air Conditioner) Cycles Too Fast or Too Slow (narrow or wide temperature swing)

Forgot Keypad Lockout Code

First item in Conguration

Menu is not SS1 or HP1

1. Blown fuse or tripped circuit breaker.

2. Furnace power switch to OFF.

3. Furnace blower compartment door or panel loose or not properly installed.

4. Loose connection to thermostat or system.

2. Furnace Lock-Out Condition. Heat may also be intermittent.

3. Heating system requires service or thermostat requires replacement.

thermostat requires replacement.

1. Possible short in wiring.

2. Possible short in thermostat.

3. Possible short in heat/cool/fan system.

4. FAN Switch set to Fan ON.

1. Thermostat thermometer setting requires adjustment.

1. The location of the thermostat and/or the size of the Heating System may be inuencing the cycle rate.

Replace fuse or reset breaker. Turn switch to ON. Replace door panel in proper position to engage safety interlock or door switch. Tighten connections.

Re-light pilot. Many furnaces have safety devices that shut down when a lock-out condition occurs. If the heat works intermittently contact the furnace manufacturer or local HVAC service person for assistance. Diagnostic: Set SYSTEM Switch to HEAT and raise the setpoint above room temperature. Within a few seconds the thermostat should make a soft click sound. This sound usually indicates the thermostat is operating properly. If the thermostat does not click, try the reset operation listed above. If the thermostat does not click after being reset contact your heating and cooling service person or place of purchase for a replacement. If the thermostat clicks, contact the furnace manufacturer or a HVAC service person to verify the heating is operating correctly.

Same as diagnostic for No Heat condition except set the thermostat to COOL and lower the setpoint below the room temperature. There may be up to

a ve minute delay before the thermostat clicks in

Cooling.

Check each wire connection to verify they are not shorted or touching together. No bare wire should stick out from under terminal block. Try resetting the thermostat as described above. If the condition persists the manufacturer of your system or service person can instruct you on how to test the Heat/ Cool system for correct operation. If the system operates correctly, replace the thermostat.

The thermometer can be adjusted +/- 4 degrees. See Temperature Display Adjustment in the Con-

guration Menu section.

Digital thermostats provide precise control and cycle faster than older mechanical models. The system turns on and off more frequently but runs for a shorter time so there is no increase in energy use. If you would like an increased cycle time, choose

SL for slow cycle in the Conguration menu, step 7

(heat) or 8 (cool). If an acceptable cycle rate is not achieved, contact a local HVAC service person for additional suggestions.

Press the menu button (button will disappear) and hold in for 20 seconds. This unlocks the thermostat.

Earlier model of thermostat refer to 37-6814D.

White-Rodgers is a business of Emerson Electric Co.

The Emerson logo is a trademark and service mark of Emerson Electric Co.

www.white-rodgers.com

www.emersonclimate.com

Emerson 1F97-1277 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual